At the end of the last century, Hummer relied on tough shape and excellent off-road ability. In fact, the car was generally achieved on the battlefield, and the protection capacity was low, it had already met the war demand at that time until 2005. The US military launched the JLTV (United Microphone) project, during 2010 – 2012, including the famous Lockheed Martin, Oshkash, US AM General and other equipment giants participated in the new generation The development of high-machine high-protection vehicles and finally completed different levels of vehicles under the “jurisdiction” of the US Army and the Marine Corps Command. As of today, a lot of orders have been produced today, and this is undoubtedly a star. Model.
JLTV is first emphasized as a general-purpose vehicle, and the second is versatile, and the combat is valued, and the M-ATV is used as lightning protection. The safety car first emphasizes the protection, followed by mobile, combat total weight of 12.5 tons to 15 tons. The above figure is “Hummer”, JLTV and M-ATV from left to right, respectively. 
As early as in the early days of the project research and development, the US R & D department clearly expressed the favor of the increased arranging electric drive train, and provided verification conditions based on the full life cycle under practical environment. . Soon, the sub-project ULV (Ultra Light Vehicle) version of the JLTV (Joint Light Tactical Vehicles) is launched, and the test of actual environment in Afghanistan is immediately tested.
New Energy Intelligence Analysis Network will make JLTV reunion-type oil-electric hybrid drive technology verification vehicle based on flat-line windings technology State and electric four-wheel drive drive system control strategy, study and determination.
1, JLTV reunable oil-electric hybrid drive technology based on flat-line motor: 
In the “N-wave N-fold” US JLTV project development more than 10 years, experienced many times Modification of hard project technical indicators. Due to the continuous conversion of Different categories of operations in the world, in JLTVIn the project, multiple “XXTV” subprojects are divided. However, regardless of the requirements of “Party A Dad”, there is no change in the need for enforcement of oil-electric hybrid drive technology to verify the needs of oil and electricity mixed drive technology.
Note: JLTV models provided by different vendors, equipped with different types of oil-electric hybrid drive technology solutions, and Oshkush Edition JLTV uses a surrequisite oil-electric hybrid drive program.
The JLTV fuel version of the left is made of Oshkush; the upper page is the top of the JLTV oil and electricity mixed version of Oshkoz. [123
In the verification model of the JLTV project provided by Oshkush, the model of traditional diesel engine and drive technology finally wizards. However, the verification vehicle with oil-electric hybrid drive technology has adopted a model platform with the fuel model, which has the same protective performance, and the performance is more prominent in motor and loading energy efficiency.
The three different technical state models of JLTV were divided into different types of specific models of the year and participation. M-ATV (Load + Independent Suspension) provided in 2009, LCTV (adapted to increasedroading, mixed drive technology + electric four-wheel drive system + independent suspension), 2011 provided JLTV (with Inside the generalized medium carrier + independent suspension of “Hummer”).
Regardless of the fuel version JLTV, or the incremental oil-electric mixed version of JLTV, all equipped with 866T V-type 8-cylinder 6.6 lifting volume turbocharged diesel engine (maximum output power 296 Kwabat), and reserved a sufficient power power generation system for the loading of different functional modules (electronic warfare, command, intelligence investigation, and missile weapons).
Among them, the incremental oil-electric hybrid drive version JLTV power assembly is driven by V8 diesel engine (maximum output power 296 kW) + generator (maximum power generation power 120 kW) +2 set of shaft drive motor (maximum output The power is 103 kW) + a lithium iron phosphate power battery system for 12 degrees of 12 degrees. 
The picture above shows the scheduled version JLTV (LCTV) dynamic assembly and driver architecture.
Red Arrow: Generator
Yellow Arrow: Front and rear axial drive motor (single machine maximum output power 103 kW)
[ 123] Black Arrow: Removed Front and Rear Transmission Shaft, Splitter and Transmission
Oschekshi manufactured package version JLTV (LCTV) front turbocharged diesel engine with generator association, output Electricity to the front and rear axial motor for driving. According to the actual road condition, the driver can select a preset drive mode, and automatically allocate electricity in front and rear bridges to meet the needs. In theory, the incremental oil-electric hybrid drive version JLTV can also be manually selected by the driver, and the torque of the output of the front and rear bridge before the extreme conditions can be arbitrarily output at 0:00 (100: 0).
Programming version JLTV removes complex transmission systems, while reserving the double-layer V-type explosion-proof padless shield at the bottom of the fuel JLTV body welding, additional protective measures can be added, or more Life replenishment.
Because the retrieval oil-electric hybrid drive scheme, the front-rear drive shaft, the mandatory, and the transmission, etc., the maximum degree is improved, and the whole vehicle reliability is maximized. Reduced driving noise and thermal radiation signals. However, Oshksh manufacturing increase version JLTV, the use of the control strategy is the turbocharged diesel engine (power) – generator (electricity) – drive bridge before and after, only 12 degrees of set load power Electric lithium iron phosphate power cells cannot be used for EV mode driven.
Need not to note that the increased range JLTV manufactured by Oshksh, adapted to a flat-line generator having a maximum power generation power of 120 kW, has a small size, high power density, good temperature performance. , Low electromagnetic noise, etc., to meet the front and rear drive motor to daily travel and external discharge requirements!
From the drive architecture, the US military test of this increase-incremental oil and electric hybrid driver JLTV except for “external plug” function, with the sale of the game Lis SF5 car is exactly the same, it is highEstablished dynamic / power reserves with an energetic / electricity reserve to drive before and after the high-end motor operation with the posture of the “Malak Train”.
In this increased range of oil-electric hybrid driven jltv, the most technically content system is not provided by TM4, the lithium power battery system provided by TM4, but by Remy is provided by a flat-wire winding technology and a two-way drive motor. Oshkush starts to carry the JLTV design of the increased range oil and electricity mixed drive technology in 2008. During this period, global power battery technology has developed very slowly, it is difficult to drive wheels that have exceed 5 tons of wheels. However, in order to obtain a better driving efficiency, the volume is smaller (shorten the length), a flat-line motor having a lighter weight and a torque density.
The front and rear axle drive motor adapted by the incremental oil and electricity mixed drive plate, is a HVH410-150-POC provided by the Ram Motor attributable to Borg Warner, USA Standard power type. The HVH410 series drive motor can provide maximum power and torque density for large vehicles such as medium and heavy trucks, buses, and off-road vehicles. The HVH series drive motor manufactured by Rome uses a high-pressure flat line “card” winding (stator) technology, which has a small, compact volume, etc., which can be easily “implanted” generator sets and drive mechanisms.
Remarks: Required Hydroelectric Hybrid Drive Edition JLTV Configured HVH410-150-POC drive Motor maximum output power 103 kW (real car status)
[123 ] The above figure shows the HVH410 series flat thread motor power / torque / speed graph. It is basically confirmed that the HVH410 series flat line motor belongs to the low speed high torque setting, and the maximum operating temperature of the stator can reach 180 degrees Celsius (the lubricating oil temperature is 70 degrees Celsius). The standard operating voltage is 600. Volt, the maximum operating voltage can be extended to 750 volts.
The HVH410 series flat line motor has different stacked lengths, cooling and winding configuration. It is a powerful, durable and robust drive / generator that can be used as a full enclosed motor or rotor / stator assembly.Used for highways and non-high-road vehicles, power generation and other special high-power demand applications. With a reliability verification of billions of km, it has been widely recognized by the industry and the research and development agencies.
According to the 2021 car drive motor standard, the maximum speed of the HVH410 series flat line motor is only 6000 rpm. Some “cold acid”, but the introduction of the flat line winding technology will reduce the length of the motor to the greatest extent. A very gorgeous technical advantage. It is critical that the HVH410 series motor oil cooling technology enables the stator to withstand the temperature of 180 degrees Celsius, and the 600 volt high voltage platform used, which is the height of many mainstream car drive motors in 2021. 
2, the increase version of JLTV modular drive bridge technology status:
The modular drive bridge of JLTV, a maximum of more than 500 mm, and More loads have transcended the “Hummer” department. The modular drive bridge of the increase version JLTV is compatible with the traditional mechanical full-time four-wheel drive system and a power four-wheel drive system consisting of 2 sets of shafts. It is stronger than “Hummer” Authority. Full time four-wheel drive system composed of open door bridges.
Obviously, the land of JLTV project is to fully replace the old and outdated “Hummer” car, which is also composed of 1,2nd-generation martial arts in the Liberation Army (adapted “disconnect door bridge” The full-time four \ six-drive system) is similar to the reasons why the new generation of martial arts (full-time four / six-drive system composed of modular drive bridge).
TAK-4 series modular drive bridge system all use new technologies such as double A-type lower swing arm + transmission half-axis + wheel reducer + disc brake pump I have different disconnected “stalls” bridges from “Hummer”. In fact, in many universal vehicle projects that the US Army (including Navy) continued, designated requirements to remove the “disconnection store” bridge, using traditional dual A-type swing arm independent suspension drive bridge, it is hope to reduce combat The TCO (full life cycle maintenance cost) of the system (load) reduces manufacturing costs, meet the desired passability and reduces gravity. In order to serve the empty window before the JLTV servings in the “Hummer”, the company has launched a single use “悍””The horse” body, the replacement of the TAK-4 series modular drive bridge system improved models.
TAK-4 series modular drive bridge system all use dual A type lower swing arm + Transmission Half-axis + Wheel Reducer + Disc Brake Pump and other new technologies, different from the “Hummer” disconnected “State” bridge. In fact, multiple universal loads continued by US Army (including Navy) In the project, the designated request removal of the “disconnectable store” bridge, using the traditional dual A type swing arm drive bridge, is the TCO (full life cycle maintenance cost) wishing to reduce the combat system (vehicle), Reduce manufacturing costs while meeting the passability and lowering center of gravity. In order to serve in the “Hummer”, Oshkash has launched 1 “Hummer” body, change Improved models of Tak-4 Series Modular Drive Bridge System. 
The above picture shows the driving bridge system before and after the fuel JLTV, waiting to fit with the body. [123 ]
Red Arrow: A differential of the modular drive bridge system (associated by transmission shaft)
Yellow arrow: transmission semi-axis
Blue arrow: wheel retracerator [ 123]
The modular drive bridge system used by the fuel version of JLTV has been strong enough. Like other 4×4 wheel equipment, all of which need to be divided and the front and rear drive shafts are re-allocated.
The increase version JLTV presets a variety of driving models including high-speed, country, muddy (sandstone \ ice and snow) and emergency. And these preset driving patterns are according to different Road / tire adhesion, allocate different torque within a certain range in front and rear drive bridges. However, it is subject to the limitations of traditional internal combustion engines and bridge technology.
The JLTV (LCTV) using the increased range oil-electric hybrid drive scheme is the same as the fuel version JLTV, and the homologous TAK-4 series independent suspension is adapted. Adjust the height of the active oil and gas shock absorbing system, so that the maximum separation of the whole vehicle reaches 508mm. Oshkush Company manufacturing JLTV-based four-wheel drive control strategy based on the increase-incremental (REV) driver, the front and rear drive bridge torque output ratio can be easily adjusted at 0-100, and drive mode in 4×2 and 4×4 according to different use scenarios Perform “seamless connection” switching.
3, through the harsh event verification of the full life cycle reliability: 
In 2010, the incremental oil and electric hybrid drive version JLTV participated in the Urid Rally Training of the Bazazazza Peninsula in Mexico, which verifies the reliability of the electric four-drive control strategy composed of flat line winding electric machine and the reliability of high-temperature high-load use in high temperature environments. 
In all uninterrupted events in a high temperature environment, JLTV’s diesel booster engine with a flat-line winding technology is well, and the power output is based on the road condition. Or automatically or manually assign to the front and rear axle drive motor.
As a military carrier for high-mimetic and reliability as the primary factor, one set of 6.6 liter V-8-cylinder turbine boost diesel engine and 120 kW The power source of the generator, matching 2 sets of torque density, larger volume (short) and more high temperature flat wire winding shaft drive motor, with TAK-4 series with an active adjustment height oil and gas suspension Use, very suitable for operational tasks such as public security patrols and firepower assault in the Middle East.
The most important thing is that the US military has a long-term verification of the increase version JLTV, eventually proves that the hydrocomputer mixed drive solution, generator and axial drive motor based on flat line winding technology, can be used It has the hard strength of multi-tactics in a complex environment.
4, the impact of flat-line motor on the civilized technology of China’s new energy technology:
2010 GM Wollardda Hasklite Edition The gasoline engine is connected in series with a “2-fit 1” system integrated with generators and drive motors. In 2010, the settlement version of the program version of JLTV was launched in series, and the 2 sets of generators were set in series, and the 2 groups of drive motors were set to the front and rear driving bridges.Inside; both generators and drive motors of the two models use a flash-based wire-based electric motor based on Riff.
The figure above shows the structure of the electric drive system of Woyan (first generation).
Red Arrow: Plug-in-line 
Green Arrow: Generator (Motor A)
Blue Arrow: Drive Motor (Motor B) [123 ]
Still compared with the 2010 electric drive technology standard, only the maximum speed of 9600 rpm / minute is relatively backward. Based on the drive motor and generator of the flat line winding technology, the dual motor integration technology, and the dual electrical control system, which is still completely lack of new energy models in 2021. 
Red Area: Sedar 4-Cylinder Gasoline Engine
Yellow Region: Sedar Dual Motor Drive System 
in General In the first generation of the car mass production, only the drive motor is a flat line winding technology and central oil cooling technique using a groove ratio of 12 pole 72 slots, but it effectively reduces the system length while ensuring presets. Equilibrism of power generation efficiency and discharge efficiency. It is also introduced to have a flat-line four-cylinder engine that can be effectively reduced by volume, especially length, in a small power cabin, in the small power cabin, while serializing this double motor drive system.
It can be considered that the US RMB Roophanda Edition Mixed Drive Edition JLTV and the US GM’s Walana Handling Retrieval Edition have been driven by the flat line winding technology provided by Riffi Company. Motor. Two extended translational drive control strategies are first, with more abundant internal combustion power, converted to greater power, or directly drive motor systems to power battery systems.
Due to no clear information, it is the maturation control strategy obtained by the increase version JLTV, and it is used for universal Wo-Lan, or the opposite. However, it can be confirmed that these two models are reliable flat-line motors that rely on Riffi’s manufacturing technology, which can continue to develop and verify in the field of military equipment and civil vehicles. 
It is important to note that China’s new energy industry chain has a joint venture company, state-owned enterprises and private enterprises regardless of the manufacturer of the whole vehicle. For the current Flat Motor in China, there is more attention, but the application is small, mainly because the new energy market has a short time development time, the main market share is concentrated in the microblog market. However, in China’s motor suppliers, only some brands can mass production based on the ability of the flat line “issued” winding motor. In these minority suppliers, only 3 vendors can mass produce different volumes, different power flat line motors.
5, the impact of flat line motors on China’s new energy technology military system: 
In the past 20 years, the People’s Liberation Army’s new energy technology military technology has conducted a lot of research and development and preparation work. . In 2014, China’s development of new energy core technologies, model platforms, and overall industrial chains as an important national policy. From 2014 to 2021, China’s new energy market has become the largest market in growth, the most developed market.
In China, from FAW, Dongfeng, Beiqi, Shaanxi Automobile, Heavy Auto, SAIC, etc., Geely New Energy, Chery New Energy and BYD and other private enterprises, in new energy Core technology, model platforms and performances in the whole industry chain have witnessed.
It is important that China has established a complete new energy industry chain in just a few years. Direct to the People’s Liberation Army Equipped with electric drive, power cells, and different types of vehicle solutions involved in the new energy technology and military use, providing large-scale, low-cost, high reliability production capacity.
In 2021, many state-owned enterprises and private enterprises from China have mass produced EV cars and PHEV models based on flat-line motors and prices of 10-20 million. This means that the maximum speed of 16000 rpm / min, oil-cooling heat, 4-8 winding technology, the maximum output power 45-160 kW flat line motor has a large-scale mass production soft strength and automated production line nationwide industrialization hard power.
In general, a flat line motor is recognized.The reason is that its high dip is full. In the same space, the flat line motor can be filled with 20% more than the rounded motor, reaching 90% or more. If it is the same power, the volume of the flat line motor will be smaller, more compact, the higher power density. “13th Five-Year Plan” proposes the peak power density of new energy vehicle drive motor to reach 4 kW / kg. To achieve the improvement of power density, the “flat line motor” technology must be used, that is, the industry has been consensus on the “flat line motor” trend.
Close-up of the rotor detail state of the rotor of the motor using the flat line “Identification” winding (referred to as the yellow arrow) on the left side.
The right side of the above figure is a flat line “card” winding (red arrow referred to) by the middle length (the yellow arrow refers to) and the composition of the composite material. Drainage Detail State of the “3 – in – 1” wheel – drive assembly.
Obviously, the drive motor or generator’s maximum advantage of the “card issuance” winding technology is applied, which is to minimize volume (length) and self-weight at the same time, while maintaining a pre-design power and torque.
The flat line drive motor of the small volume (length) can be used as an unmanned full-electric driven wheel equipment that is detected and assault tasks.
The performance of the flat wire motor excellent in heat dissipation efficiency can be integrated with heavy load wheel equipments such as 12×12 or 12×10 as a shaft drive motor and a high-power generator. However, the most significant help of the motor based on the flat line winding technology and large-scale mass production is that the power is from 15 kW-200 kilowatts or even 300 kilowatts, and the speed from 16,000 rpm-20000 rpm / min. , Or “to the left” walk the small size route, or “to the right” to high performance route. In any case, political and reliable domestic flat-line motor suppliers should be more closely coupled with the research institutes and the whole vehicle manufacturer, providing a larger wheel-drive heavy-duty carrier for the Liberation Army.
It should be noted that in 2021, China’s local suppliers already have a larger torque density, 8-layer winding flat line motor system, but not only for power generationThe axial drive can also be used to require higher wheel drives, while the performance improvement, it also contributes to the transformation of traditional power models, increasing high-power generator systems.
Transforming the traditional power model into a hybrid model is complicated, high cost, and long research and development cycle, often unable to quickly meet the needs of the load-loaded power generating component, however the flat line motor system has a small size, Good heat dissipation, can reduce the diameter of 10%, axial length (height) reduces 15%, and the power density is significantly improved. The end structure of the coil is more compact, and the end is much lower than the duplex winding. There is a clear advantage in the entire vehicle arrangement.
There is a saying:
Relying on the establishment of the world’s most prosperous new energy industry chain, Chinese civil new energy will break through the model, power battery technology and other nodes, flat Line (driver or power generation) Motor is fully popularized will be another technology improvement point. At the same time, after a variety of power of China’s large-scale mass production, after a variety of flat line motors, equipment research and development vendors can purchase and carry out two or even three times in a wide (guaranteed) pine (secret) ecological environment. Development.
Not complete. . .
New Energy Intelligence Analysis Network Evaluation Group